Ring spinning and doubling frame



Sept. 9 1924.

T. POTTER, JR., ET AL RING SPINNING AND DOUBLING FRAME Filed July 5,

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Sept. 9, 1924. 1,508,248

T. POTTER. JR, ET AL RING SPINNING AND DOUBLING FRAME Filed July 5 1923 3 Sheets-Sheet 3 ent counts of yarn.

Patented Sept. 9, 1924*,

,FFICE.

THOMAS POTTER, JR-., FRED FIELDING, JAMES THOMAS FIELDING, AND THOMAS POTTER, OF OLDHAM, ENGLAND.

RING SPINNING AND DOUBLING- FRAME.

Application filed July 5, 1923.

To all whom it may concern.

Be it known that we, THOMAS Por'rne, Jr, FRED FinLDINe, JAMES THOMAS FIELDING, and THOMAS POTTER, all British subjects, residing at Oldham, in the county of Lancaster, England, have invented certain new and useful Improvements in Ring Spinning and Doubling Frames, of which the following is a specification.

This invention relates to ring spinning and doubling frames and the object thereof is to enable yarn to be spun or doubled on the bare spindles of such frames whilst employing a ring and traveller of the usual form to that em loyed for ring spinning or doubling on bob ins.

lVe' attain this object by the mechanism illustrated in the accompanying two sheets of drawings, in which Figure l is a diagrammatic view illustrating an arrangement of parts.

Fig. 2 is a front View, and

Figure 3 is a view in cross section of a part of a spinning or doubling frame, drawn to a reduced scale.

Figure 4 is an elevation of the upper part of a spindle drawn to an enlarged scale.

Referring to the drawings, in the construction illustrated therein the ring rail 1 and the parts carrying the spindles 2 are slanted so that the spindles 2 are bevelled or inclined away from the draw rollers 8. The arrangement is preferably such that the bevel can be readily adjusted to suit differ- One suitable incline is half an inch in nine inches, the nine inches being measured on a vertical line.

A short distance above the traveller ring 4: we provide a stationary ring 5 surrounding the spindle 1. The rings 5 are preferably such as described in patent specification 138432, and a suitable distance is for example one quarter inch for small section travellers and five sixteenths of an inch for large section travellers. The spindles 2 are formed preferably with a cylindrical portion a at the base and a cylindrical portion 6 at the top, the cylindrical portion a being of larger diameter than the portion 6 and the two portions being joined together by a taper 0, d, 6 portion. The spindles 2 are longer than the largest cops to be produced, and the taper of the part 0 being less than the taper of the part d but greater than the 5 part e.

Serial No. 649,602.

As will be seen from Figure 4: the spindle 2 can be used for either weft cops or twist cops, the formerbeing indicated by broken lines and the latter by full lines. When the cop is completed it can be slipped upwards and the yarn be coiled a few times round the exposed base of the spindle before it is broken to free the finished cop.

The rail lifting'cam 6 is arranged to lift the rail at a gradually increasing speed, to suddenly increase the lifting speedat the last moment and to allow the rail to fall suddenly after it has reached itsuppermost position for about. one third of the length of the nose of the cop and then fall at a decreasing speed which is however always greater than the speed at which the rail lifts. In the cam illustratedthepart f lifts the rail l through the usual lever 7, chain-.8,

quadrant 9, rocking shaft 10, and arm 11, or through any other suitable lifting means, at a gradually increasing speed.- The part a lifts the rail at a suddenly increased speed. The part it allows the rail to fall suddenly and the part i allows the rail to continue to fall at a decreased speed which is however always greater than the li-ftin'gspeed- The cam 6 therefore produces a nose on the cop, wherein the coils of the yarn from the base thereof towards the" top gradually get closer, those coils at thetop with the exception of the last few coils being very much closer to each other than those at the bottom of the nose, whilst the coils of the yarn from the top of the nose towards the bottom thereof gradually get closer towards each other, the first portion OfztllB first of said coils being as nearly perpend-i cular as possible and thereby locking the coils at the upper end of the nose beneath it. There are considerable less coils from the top of the nose to the base than from the base to the top with" the result that the formation of the cop is very similar to that of a cop produced on a spinning mule. The cam 6'is arranged to run at about five times greater speed than the equivalent cam on previous ring spinning or doubling frames employed for spinning on bobbins, with the result that thecoils of yarn do not lie side by side as is usual in ring. spinning or doubling.

The centre 12 of the cam 6 is'set back" so that the rail 1 commences to fall earlier than is usual in ring spinning or doubling and a projection 18 is provided at the descending side of the cam 6 so as to catch the cam bowl l t in its fall from said centre and by breaking the fall of the bowl 14L prevent it from rebounding at the end of the fall and thereby prevent broken ends.

The yarn passes direct from the draw rollers 3 to the spindles 2 and forms a few coils on the bare upper end of the spindles 2. In order to prevent these coils from leaving the spindles we provide a wire 15 arranged above the rings 5 and behind the spindles 2. A wire may extend the length of each box of spindles 2 and be mounted in brackets 16 which allow of them being moved back to facilitate dotting.

The yarn passes through ordinary bow travellers 17 on each ring 4.

Where our improvements are applied to existing ring spinning frames which are readily convertible, we prefer to apply a rotary lift in place of the existing lever lift.

Any suitable knocking off motion, not shown, may be provided on the frame to stop it when the formation of a set of cops is complete.

We claim 1. In a ring spinning and doubling frame, the combination of draw rollers driven at a constant speed; ring travellers of the usual bow construction; control rings lifting and falling with the said rail controlling the yarn and reducing friction between the ring and traveller; a ring rail lifting cam the centre of which is set back and which operates to lift the said rail at an increasing speed and lower the said rail at a higher speed which diminishes after the rail has fallen a short distance but remains at all times higher than the speed of lifting; and inclined spinning spindles mounted on the frame; with a guide member mounted behind the spindles on the ring rail and arranged higher than the control rings to prevent the yarn coils from leaving the tops of the spindles.

2. A ring spinning and doubling frame comprising in combination, draw rollers rotated at a constant speed; ring travellers of the usual bow construction; a driven cam with its centre set back operating the ring rail to lift the said rail at an increasing speed and lower the said rail at a higher speed which diminishes after the rail has fallen a short distance but remains at all times higher than the speed of lifting; a yarn guide member mounted on the frame behind the spindles; and yarn control means fixed to the ring rail for producing an even wind of the yarn and thereby ensuring that the coils thereof fall into the correct positions intended by the said cam.

3. A ring spinning and doubling frame comprising in combination, draw rollers rotated at a constant speed, ring travellers of the usual bow construction; a driven cam with its centre set back operating the ring rail to raise the same at an increasing speed and lower the same at a decreasing speed; yarn control rings on the said rail; inclined spinning spindles on the frame; and a movable member on the rail having two end positions to prevent in one end position yarn coils from leaving the tops of the spindles during spinning of the yarn and be clear of the yarn in the other end position during dofling.

4t. A ring spinning and doubling frame, comprising in combination, draw rollers driven at constant speed, ring travellers of the usual bow construction; inclined spinning spindles, a ring rail controlling cam mounted in the frame, a part on the said cam for causing a sudden increase in the lifting speed of the ring rail at the end of the lift; a part on the said cam for causing a sudden fall of the ring rail at the beginning of the downward movement of the ring rail, and an apex between the said parts situated behind a radius line drawn perpendicularly to the smallest radius of the cam.

55. A ring spinning and doubling frame, comprising in combination; draw rollers driven at constant speeds; ring travellers of the usual bow construction; inclined spinning spindles; a ring rail controlling cam mounted in the frame: a part on the cam joining a set-back centre of the cam for causing a sudden fall of the ring rail at the beginning of the downward movement of the ring rail; and a bulge on the said part for breaking the sudden fall of the ring rail near the end of the said sudden fall.

6. A ring spinning and doubling frame, comprising in combination yarn drawing rollers driven at constant speeds; a bevelled spindle receiving the yarn direct from the said rollers without the aid of a guide eye; a ring traveller of the bow type through which the yarn passes before it is finally wound on the spindle; a ring surrounding the spindle through which the yarn passes before it engages the travellers; a horizontal wire behind the top of the spindle against which the yarn bears under centrifugal action; a ring rail carrying the said traveller, the said ring and the said wire; means operatively connected to the ring rail for reciprocating the ring rail; a cam with a setback centre for actuating the said means; a part on the cam for actuating the said means to lift the rail at a gradually increasing speed; a part on the said cam for actuating the said means to further lift the cam at a further suddenly increasing speed; a part on the cam for causing the said means to allow the rail to suddenly fall a short distance; a part on the said cam for causing the said means to gently but quickly retard the falling movement of the rail; and a part on the cam for causing the said means to allow the rail to continue to fall at the retarded speed and further retard the said speed, the last named three parts being adapted to cause the rail for the Whole of its fall to move at a greater speed than When lifting.

7. In a ring spinning and doubling frame for spinning and doubling on the bare spindle, the combination of draw rollers rotated at constant speeds; a ring rail controlling earn; a part on the cam periphery to lift the ring rail at a gradually increasing speed; a part on the cam periphery to cause the ring rail to fall at a suddenly further increased speed but retain control of the said fall, a part on the cam, a base on the cam periphery between one end oi. the first named part and one end of the third named part; and an apex on the cam periphery between the other ends of the first and third named part, the said apex, considered relative to the direction of rotation of the cam, lying behind a line drawn through the rotary axis of the cam at right angles to a line oining the base of the cam and the said rotary axis.

Signed at Manchester, in the county of Lancaster, England, this 18th day of June, 1923.

THOMAS POTTER, JUNR. FRED FIELDING.

JAMES THOMAS FIELDING. THOMAS POTTER. i 

